The Sherureusu is a Flying Wyvern that was thought to be extinct until it's discovery in the Forgotten Island. It is the direct ancestor of the Rathalos and Rathian, and was a evolutionary split from the Wyvern Rex. It stands on all fours for most of the time like a Tigrex, but it can breathe fire like Rathalos and Rathian, and can use it's tail to poison foes like a Rathian.

Habitat

Notes

It's moveset is similar to both the Rathian and Tigrex

When low on stamina, it will attack and eat an Aptonoth or Bullfango to regain stamina.

It has a pin attack, where it pounces on a hunter, and if the pounce connects, The Sherureusu will start to take bites out of the hunter to regain stamina, doing damage as it does. A Hunter can break free, or throw a dung bomb at the Sherureusu to escape.

Like Rathian, it will not eat a meat that is placed on the ground by hunters unless it does not see the hunters first.

In rage mode, It is faster and more aggressive in it's attacks.

It is the First "Extinct Species" that appears in MHEX, along with Keputosu.